---
product_id: 14687191
title: "Seagate ST9120822A Momentus 5400.3 Ultra ATA/100 120 GB Bulk/OEM Hard Drive"
brand: "seagate"
price: "¥27274"
currency: JPY
in_stock: true
category: "Seagate"
url: https://www.desertcart.jp/products/14687191-seagate-st9120822a-momentus-5400-3-ultra-ata-100-120-gb
store_origin: JP
region: Japan
---

# Ultra ATA/100 transfer rate 5400 RPM spindle speed 120GB storage capacity Seagate ST9120822A Momentus 5400.3 Ultra ATA/100 120 GB Bulk/OEM Hard Drive

**Brand:** seagate
**Price:** ¥27274
**Availability:** ✅ In Stock

## Summary

> 💼 Elevate your mobile productivity with storage that keeps pace!

## Quick Answers

- **What is this?** Seagate ST9120822A Momentus 5400.3 Ultra ATA/100 120 GB Bulk/OEM Hard Drive by seagate
- **How much does it cost?** ¥27274 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/14687191-seagate-st9120822a-momentus-5400-3-ultra-ata-100-120-gb)

## Best For

- seagate enthusiasts

## Why This Product

- Trusted seagate brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast Data Access:** 8MB cache and 11ms seek time ensure quick boot-ups and speedy file transfers.
- • **Smooth & Quiet Operation:** Experience whisper-quiet performance that won’t disrupt your workflow.
- • **Compact 2.5-inch Form Factor:** Fits seamlessly into laptops and tablets for ultimate portability.
- • **Reliable Perpendicular Recording:** Maximizes data density and durability, keeping your files safe and accessible.
- • **Trusted Brand with 3-Year Warranty:** Seagate’s proven reliability backed by a solid warranty for peace of mind.

## Overview

The Seagate Momentus 5400.3 ST9120822A is a 120GB 2.5-inch hard drive designed for laptops and tablets, featuring a 5400 RPM spindle speed, Ultra ATA/100 interface for fast data transfer, and 8MB cache memory. Its perpendicular recording technology enhances storage density and reliability, while its compact form factor and quiet operation make it ideal for professionals on the move. Backed by a 3-year warranty, it offers dependable performance for everyday computing needs.

## Description

Seagate ST9120822A Momentus 5400.3 Ultra ATA/100 120-GB Hard Drive, Momentus® 5400.3 hard drives incorporate perpendicular recording technology for maximum capacity, reliability and performance in demanding operating environments. Perpendicular recording technology increases capacity and reliability by storing data vertically instead of horizontally for maximum data density on the hard drive and reduced potential for thermal decay.

## Features

- 5,400 RPM Spin Speed, 8 MB Cache Buffer
- Ultra ATA/100 Interface, 120 Gb Capacity
- Average latency 5.56 msec, Random read seek time 11.0 msec, Random write seek time 13.0 msec
- Applications; Mainstream laptops, Tablet PCs, External 2.5-inch hard drives, Printers and copiers, Non-mission-critical blade servers
- 3 Year Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001R4BBCE |
| Additional Features | Portable |
| Best Sellers Rank | #7,915 in Internal Hard Drives #134,617 in Computer Internal Components |
| Brand | Seagate |
| Cache Memory Installed Size | 8 MB |
| Compatible Devices | Laptop, Tablet |
| Connectivity Technology | Ultra ATA |
| Customer Reviews | 3.6 3.6 out of 5 stars (5) |
| Data Transfer Rate | 100 megabytes_per_second |
| Digital Storage Capacity | 120 GB |
| Form Factor | 2.5-inch |
| Global Trade Identification Number | 00900000002922 |
| Hard Disk Description | Ata |
| Hard Disk Form Factor | 2.5 inches |
| Hard Disk Interface | Ultra ATA |
| Hard Disk Rotational Speed | 5400 rpm |
| Hard-Drive Size | 120 GB |
| Hardware Connectivity | ATA |
| Hardware Platform | PC, laptop |
| Installation Type | Internal Hard Drive |
| Item Weight | 3.52 ounces |
| Manufacturer | SEAGATE |
| Mfr Part Number | ST9120822A |
| Model Name | Momentus 5400.3 |
| Model Number | ST9120822A |
| Number of Items | 1 |
| Read Speed | 100 megabytes_per_second |
| Specific Uses For Product | Personal |
| UPC | 900000002922 836367003183 |
| Warranty Description | 3 Year Warranty |

## Product Details

- **Brand:** Seagate
- **Compatible Devices:** Laptop, Tablet
- **Connectivity Technology:** Ultra ATA
- **Digital Storage Capacity:** 120 GB
- **Hard Disk Description:** Ata
- **Hard Disk Form Factor:** 2.5 inches
- **Hard Disk Interface:** Ultra ATA
- **Hard Disk Size:** 120 GB
- **Installation Type:** Internal Hard Drive
- **Special Feature:** Portable

## Images

![Seagate ST9120822A Momentus 5400.3 Ultra ATA/100 120 GB Bulk/OEM Hard Drive - Image 1](https://m.media-amazon.com/images/I/81hBnrGFXeL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/14687191-seagate-st9120822a-momentus-5400-3-ultra-ata-100-120-gb](https://www.desertcart.jp/products/14687191-seagate-st9120822a-momentus-5400-3-ultra-ata-100-120-gb)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-12*